WO2017199355A1 - アキシャルギャップ型回転電機 - Google Patents

アキシャルギャップ型回転電機 Download PDF

Info

Publication number
WO2017199355A1
WO2017199355A1 PCT/JP2016/064673 JP2016064673W WO2017199355A1 WO 2017199355 A1 WO2017199355 A1 WO 2017199355A1 JP 2016064673 W JP2016064673 W JP 2016064673W WO 2017199355 A1 WO2017199355 A1 WO 2017199355A1
Authority
WO
WIPO (PCT)
Prior art keywords
axial
gap type
electrical machine
rotating electrical
type rotating
Prior art date
Application number
PCT/JP2016/064673
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
博洋 床井
高橋　秀一
恭永 米岡
利文 鈴木
健児 鵜澤
山崎　克之
酒井　亨
正木　良三
Original Assignee
株式会社日立産機システム
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立産機システム filed Critical 株式会社日立産機システム
Priority to CN201680081215.8A priority Critical patent/CN108604845B/zh
Priority to JP2018517986A priority patent/JP6596584B2/ja
Priority to US16/097,738 priority patent/US10992203B2/en
Priority to EP16902374.4A priority patent/EP3460960B1/en
Priority to PCT/JP2016/064673 priority patent/WO2017199355A1/ja
Priority to TW106112279A priority patent/TWI646758B/zh
Priority to TW107140641A priority patent/TWI727223B/zh
Publication of WO2017199355A1 publication Critical patent/WO2017199355A1/ja

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/06—Machines characterised by the wiring leads, i.e. conducting wires for connecting the winding terminations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings

Definitions

  • the present invention relates to an axial gap type rotating electric machine, and more particularly to an axial gap type rotating electric machine having a wiring holding portion for holding a jumper wire.
  • An axial gap type rotating electrical machine has a cylindrical stator (stator) and a disk-shaped rotor (rotor) arranged to face each other, and is considered to be suitable for a thinner structure than a radial gap type rotating electrical machine. .
  • the connecting wire drawn from the stator winding is often arranged on the outer diameter side of the rotor. It is also preferable to fix the connecting wire with resin or the like together with the core and the winding so as not to move.
  • Patent Document 1 is an axial air gap type electric motor, and includes a connecting wire processing portion extending in the axial direction on the outer peripheral side of an insulator end surface constituting a core member, and a rotational direction on the outer diameter side of the connecting wire processing portion.
  • positions a crossover and supports the crossover of each core member via the adjacent crossover process part is disclosed.
  • Patent Document 1 has a configuration in which a crossover processing unit is arranged on each core member. For this reason, it has the characteristic that the separation distance between adjacent crossover processing parts becomes large.
  • the connecting wire is linearly arranged between the connecting wire processing units, and the connecting wire is positioned on the inner diameter side.
  • crossover lines are arranged linearly between adjacent crossover processing units, the crossover lines form a polygonal area.
  • a resin-molded stator in which the connecting wire processing portion and the connecting wire are integrally molded with resin together with the core member, there arises a problem that only a resin die having a size inscribed in the polygonal region can be used.
  • the crossover processing section of Patent Document 1 has a flat surface (for example, a side surface on the inner diameter side) in contact with the resin mold, and the resin is sealed in such a state that the flat surface and the resin mold are in contact with each other.
  • the resin at the contact portion may be thinned. In such a thinned portion, there is a high possibility that the resin is peeled off due to vibration during driving and aging, and the peeled resin may adversely affect the electrical and mechanical elements.
  • a stator in which a plurality of core units having at least a core, windings arranged on the outer periphery of the core, and crossovers drawn from the windings are arranged annularly around the rotation axis, and an axial end surface of the core and a gap
  • An axial gap type rotating electrical machine having at least one rotor facing the surface via a rotor and a rotating shaft that rotates together with the rotor, the outer diameter of the stator on the axial end surface side and the outer diameter side of the stator
  • a plurality of wiring support portions having an arcuate base portion extending in the rotational direction along the side annular shape;
  • the base has a length extending over the outer diameter side end surfaces of the two or more adjacent core units and a predetermined axial width, and the crossing is performed on the surface opposite to the rotational axis direction of the base.
  • a plurality of grooves for guiding the wire in the rotation direction are provided in
  • the connecting wire is not damaged, the reliability thereof can be ensured, and the space for arranging the connecting wire can be saved, and the axial gap type rotating electric machine has high output and high efficiency. And miniaturization can be achieved.
  • FIG. 1 It is a longitudinal cross-sectional view which shows the structure of the electric motor by Example 1 to which this invention is applied. It is a perspective view which shows typically the structure of the core unit by Example 1.
  • FIG. It is a perspective view which shows typically the arrangement configuration of the core unit which comprises the stator by Example 1.
  • FIG. It is a perspective view which shows the structure of the wiring piece by Example 1.
  • FIG. 3 is a perspective view showing a partial cross section and the like of a wiring piece according to Example 1.
  • FIG. It is a perspective view which shows typically the arrangement
  • FIG. 10 is a perspective view schematically showing a configuration of a wiring piece according to a modification of Example 2.
  • FIG. It is the perspective view and partial enlarged view which show typically the aspect which has arrange
  • FIG. 1 is a cross-sectional view along the rotational axis direction of an axial gap type electric motor 100 (hereinafter simply referred to as “motor 100”) according to a first embodiment to which the present invention is applied.
  • motor 100 an axial gap type electric motor 100
  • the electric motor 100 includes a substantially annular stator (stator) 10 and two disk-shaped rotors (rotors) 20 arranged so as to sandwich the stator 10 from the rotation axis direction, and these are predetermined in the axial direction. It has the structure arrange
  • the rotor 20 is fixed so that the central portion thereof rotates together with the shaft (rotating shaft) 50, and the load side and the non-load side of the shaft 50 are supported by the bracket 40 via bearings 60 and 60.
  • the bracket 40 is fixed to the end of the substantially cylindrical housing 30 near the outer diameter via bolts or the like.
  • the rotor 20 has a magnet 21, a back yoke 22 and a yoke 23.
  • the magnet 21 is a permanent magnet, and various magnets such as neodymium and ferrite can be applied according to specifications.
  • the back yoke 22 functions as a base of the rotor 20 and has a disk shape, and a plurality of magnets 21 are fixed to one end surface via the yoke 23 by an adhesive or mechanical fixing.
  • a fan is formed in units of one pole, and the magnets 21 are arranged in a ring shape as poles (S ⁇ N) in which one surface in the axial direction is different between adjacent magnets.
  • stator 10 a plurality of (in this example, 12) core units 14 each having windings 12 arranged on an outer peripheral side of a core 11 via bobbins 13 that are insulating members are arranged in an annular shape around a shaft 50. Become. Further, in order to fix and insulate the stator 10 made of such an annular body into the housing 30, the stator 10 has a part or all of the adjacent core units 14, the inner and outer peripheral sides of the annular body, and the axial end surface. The mold resin 15 is covered.
  • the connecting wire 70 drawn out from each core unit 14 is disposed on the opposite end surface of the stator 10 (the lower side in the figure) and on the inner peripheral side of the housing 30 via a wiring piece 80 (wiring support portion) described later.
  • the stator 10 is provided between the adjacent core units 14, the inner and outer peripheral sides of the annular body, It has the mold resin 15 which covers a part or all of the end face in the axial direction.
  • FIG. 2 schematically shows a configuration example of the core unit 14.
  • FIG. 2A is a perspective view schematically showing the external configuration of the core 11.
  • the core 11 is formed by laminating steel plates or the like in the radial direction, and has a columnar shape having a substantially trapezoidal cross section in the rotation axis direction.
  • the laminated member may be a foil body or the like in addition to the steel plate, and in this embodiment is an example in which an amorphous foil body is laminated.
  • the core 11 has a trapezoidal columnar shape in which the cross section is trapezoidal by laminating the laminated members whose width in the rotational direction is gradually increased from the rotational axis direction toward the radial direction.
  • the cross-sectional shape is not limited to a trapezoidal shape, and may be a circular shape, a rhombus shape, or the like, or may be a columnar body formed by stacking laminated members having different shapes.
  • the core 11 is not limited to the one constituted by the laminated body, but may be a core formed by cutting or compacting, and is not a column body having a cross-section of the same cross-sectional area in the axial direction, but partially rotated. Columnar shapes with different directions and radial dimensions may be used.
  • FIG. 2B is a perspective view showing an external configuration of the bobbin 13.
  • the bobbin 13 is made of an insulating member such as resin, and includes a cylindrical portion 13b extending in the axial direction, and a flange portion 13a extending from the vicinity of both ends of the cylindrical portion 13b by a predetermined width in the rotational direction along the shape of the opening edge.
  • the cylinder part 13b has an inner cylinder part that approximately matches the outer peripheral shape and size of the core 11, and the core 11 is inserted into the inner cylinder part.
  • molding die and comprises the bobbin 13 by injection molding may be sufficient.
  • FIG. 2C is a perspective view showing the configuration of the core unit 14.
  • the core unit 14 has a winding 12 on the outer cylinder of the cylinder portion 13 b of the bobbin 13.
  • the winding 12 is wound between two flanges 13a near both ends in the axial direction.
  • the plurality of core units 14 configured as described above are arranged in an annular shape around the rotation axis, and as shown in FIG. 3 (b), adjacent core units 14 and The connecting member 35 for connection is fixed to the outer diameter side of the bobbin flange 13a, and the ends of the connecting members 35 adjacent to each other are connected to each other, so that the annular arrangement of the stator 10 is maintained.
  • the stator 10 is installed in a housing 30 together with a wiring piece 80 to be described later, sandwiched between resin molding dies inserted from both openings of the housing 30, and molded by encapsulating a mold resin 15.
  • the present invention does not necessarily require the connecting member 35, and the annular state of the stator 10 may be maintained by another fixing member, or the fixing member may not be used.
  • the winding 12 of each core unit 14 is drawn out as a crossover 70 in one axial direction of the stator 10.
  • the plurality of crossing wires 70 that are drawn out are arranged so that the outer diameter of the one end surface in the axial direction of the stator 10 is close to the inner circumference of the housing 30 along the rotation direction.
  • the connecting wire 70 is arranged so as to be aligned in the axial direction with another connecting wire 70 arranged in the rotation direction along the inner circumference 30 of the housing, and via the lead portion 31 (see FIG. 6) of the housing 30. To come out.
  • a part of the connecting wire 70 is arranged on the inner periphery of the housing so as to partially overlap the horizontal projection surface of the rotor 20.
  • all or part of the outer peripheral side surface of the rotor 20 is arranged in a non-contact manner on the axial center side with respect to the crossover wires 70 that arrange the housing inner circumference in the axial direction.
  • the crossover wire 70 that has come out of the housing 30 is connected to a power supply terminal via a terminal box or the like.
  • FIG. 4, FIG. 5 and FIG. 6 schematically show the configuration of the wiring piece 80.
  • FIG. 4A is a perspective view of the wiring piece 80 observed from the outer peripheral side of the electric motor 100
  • FIG. 4B is a perspective view of the wiring piece 80 observed from the inner peripheral side of the electric motor 100.
  • the upper side is the side facing the stator 10).
  • the wiring piece 80 is made of an insulating member, preferably made of a polymer.
  • the wiring piece 80 has an arc shape along the inner peripheral surface of the housing 30. More specifically, the wiring piece 80 includes a base portion 81 on the inner diameter side, and has a plurality of guide portions 88 functioning as “grooves” that guide the crossover wires in the rotation direction on the outer diameter side of the base portion 81.
  • the base 81 has an extending width extending in the axial end face side and the outer diameter side of the plurality of core units 14 (two in the present embodiment) and an axial width. And the arc shape of the base 81 ensures that the crossover 70 is arranged in the arc shape. That is, the connecting wire 70 is restricted from being arranged in a straight line, and the connecting wire 70 is prevented from approaching the axial center.
  • a plurality of guide portions 88 are arranged on the outer diameter side surface of the base portion 81 at predetermined intervals in the rotation direction.
  • one wiring piece 80 arranges three guide portions 88 in the rotation direction.
  • Each guide portion 88 includes guide protrusions 88a (convex portions) that are equal to or more than the number of connecting wires 70 to be arranged in the axial direction. That is, one wiring piece 80 arranges a plurality of guide portions 88 in the rotation direction, each of which includes a plurality of guide protrusions 88a arranged in the axial direction.
  • the guide protrusion 88a has a shape extending from the base 81 toward the inner periphery of the housing 30 with a width of at least the diameter of the connecting wire 70 in the outer diameter direction and extending a predetermined width in the rotation direction.
  • the connecting wire 70 of each core unit 14 is arranged in the space (groove) between the guide protrusions 88a along the rotation direction, and the lead portion 31 (via the gap between the guide protrusions 88a of other guide parts 88 adjacent in the rotation direction. (See FIG. 7).
  • the connecting line 70 is arranged in any one of the left and right rotational directions in which the arrangement distance from the left and right to the extraction portion 31 is shorter than the extraction portion 31 in the radial direction. Take the configuration to do. As a result, the length of all the crossover wires 70 extending in the axial direction is shortened, and the number of layers of the crossover wires 70 arranged in the axial direction is reduced, so that the motor 100 can be further shortened.
  • the guide protrusion 88a has a retaining portion 82 that extends a predetermined width in the axial direction on the load side and / or the anti-load side at the tip on the inner peripheral side of the housing.
  • the retaining portion 82 forms a gap similar to or smaller than the diameter of the connecting wire 70 together with the other retaining portions 82 adjacent to each other in the axial direction, and prevents the connecting wire 70 disposed between the guide protrusions 88a from coming off. To do. In other words, both edges of the groove opening have a smaller width in the axial direction than the storage area of the crossover line 70.
  • the sealing step of the mold resin 15 there is an effect of preventing the connecting wire 70 from being pressed between the guide protrusions 88 a toward the housing side by the sealing pressure, and the molding to the connecting wire 70 being incomplete.
  • the retaining portion 82 is effective not only at the time of molding but also for preventing the connecting wire 70 from coming into contact with the inner periphery of the housing due to driving vibration of the rotating electrical machine 100, and further ensuring the reliability of insulation. To do.
  • the base 81 has a radial through hole 86 that penetrates the base 81 from the bottom of the gap between the guide protrusions 88a (the bottom of the groove).
  • the radial direction through hole 86 functions to promote the wraparound of the resin in the resin molding process.
  • FIG. 5 shows an enlarged view of the cross section in the axial direction of the wiring piece 80 (cross section AA in FIG. 4).
  • the axial width between the retaining portions 82 is d1
  • the axial width d2 of the radial through hole 86 is such that d2> d1.
  • the connecting wire 70 is pushed toward the housing by pressing the resin that encloses the radial through hole 86 from the axial center side, whereas the retaining portion 82 prevents the connecting wire 70 from coming off from the guide projection 88a toward the housing. Functions and stabilizes the position of the crossover 70.
  • the wiring piece 80 has a continuous guide projection 88b along the arc shape of the base 81 at the end of the base 81 opposite to the stator 10 in the axial direction.
  • the continuous guide protrusion 88b has a shape extending in the radial direction with the same width as the guide protrusion 88a toward the housing side of the base 81 and extending from the center of the base 81 in the left-right rotation direction.
  • the continuous guide protrusion 88b functions as a reinforcement of the base portion 81, and the surface on the core unit 14 side functions as an arrangement region of the crossover 70 similarly to the guide protrusion 88a.
  • the surface of the continuous guide protrusion 88b opposite to the stator 10 in the axial direction has a plurality of flow path protrusions (convex portions) 83a extending at the same width in the axial direction and arranged at equal intervals in the rotational direction.
  • Each flow path protrusion 83a extends toward the axial center, and its axial tip is in contact with the resin mold in the resin molding process.
  • the base 81 further has a channel protrusion (protrusion 83b (see FIG. 4B)) extending in the axial direction continuously from each channel protrusion 83a on the surface on the axial center side.
  • the tip on the axial center side comes into contact with the resin mold.
  • the flow path protrusion 83a and the flow path protrusion 83b are connected to the flow path between the resin mold and the resin mold.
  • the end of the flow path projections 83a and 83b in the extending direction ensures contact with the resin mold, thereby ensuring the positioning and posture holding of the wiring piece 80.
  • the thickness of the mold resin 15 disposed between the resin mold can be increased and secured. Resin It is possible to prevent the release.
  • the flow channel protrusions 83a and 84b are effective also there to increase the rigidity of the interconnection piece 80.
  • the positioning portion 84 is a protrusion extending in the axial direction in order to position the wiring piece 80 with respect to the core unit 14 arranged in an annular shape.
  • the positioning portion 84 is inserted into a gap or the like between the adjacent flange portions 13a of the two core units 14.
  • the positioning portion 84 is disposed at the center of the wiring piece 80 in the rotational direction.
  • the core unit 14 side such as 13a may have a convex portion
  • the wiring piece 80 may have a concave portion or the like that fits the convex portion.
  • FIG. 6 schematically shows a wiring piece 80 arranged in a plurality of core units 14 arranged in an annular shape.
  • the side on which the wiring piece 80 is installed is the anti-load side of the electric motor 100.
  • the wiring pieces 80 are arranged over the outer diameter side end portions of a plurality (two in this embodiment) of the core unit 14 in the rotation direction.
  • another wiring piece 80 is arranged in each of a set of a plurality of core units 14 arranged across one wiring piece 80 and a set of other core units 14.
  • one wiring piece 80 is arranged (by straddling) in one core unit 14, it is possible to prevent the storage area of the crossover 70 from being excessively expanded in the axial direction.
  • the diameter of the rotor 20 can be secured.
  • the rotor 20 can be brought close to the stator 10 so that at least a part of the wiring piece 80 and the projected surface of the outer diameter side surface of the rotor 20 overlap each other, and a short axis effect can also be expected.
  • FIG. 7 schematically shows that the stator 10 in which the wiring piece 80 is arranged is arranged in the housing 30.
  • the connecting wire 70 drawn out from each core unit 14 crosses the wiring piece 80 arranged in the core unit and the adjacent wiring piece 80 in the rotation direction in order, and is drawn out from the lead-out portion 31 to the outside of the housing 30.
  • a resin mold (not shown) is inserted from both open ends of the housing 30, and the stator 10, the wiring piece 80, the jumper wire, and the inner periphery of the housing are integrally covered with the mold resin 15.
  • FIG. 8 schematically shows the core unit 14, the wiring piece 80, the mold resin 15 and the like in the BB cross section of FIG.
  • the wiring piece 80 is integrally covered with the molding resin 15 together with the stator 10.
  • the flow path protrusions 83a and 83b and the radial through hole 86 facilitate sufficient wraparound of the mold resin 15 between the guide protrusions 88a and 88b (arrangement area of the crossover line 70), thereby insulating the crossover line 70. It is possible to improve the performance and secure the holding, to maintain the thermal stress and vibration resistance at the time of driving, and to expect the effect of preventing the wiring piece 80 from falling off or peeling off.
  • the integrally formed wiring piece 80 since the integrally formed wiring piece 80 has a shape straddling the plurality of core units 14 in the rotation direction, the holding force of the connecting wire 70 which is a wire is improved. Further, the flow path protrusions 83a and 83b and the radial through hole 86 of the wiring piece 80 help the mold resin 15 wrap around the crossover wire 70 and each part of the wiring piece, and the single wiring piece 80 extends in the rotation direction. Even if it takes a long shape, the mold resin 15 is sufficiently filled.
  • the wiring piece 80 prevents the connecting wire 70 from being damaged. Further, the arc shape of the wiring piece 80 prevents the connecting wire 70 from moving toward the inner diameter side, and does not limit the arrangement area of the rotor 20. Furthermore, the flow path protrusions 83a and 84b are in contact with the resin mold to improve the positioning and posture maintenance of the wiring piece 80 and promote the thickening of the resin in the wiring piece 80, thereby improving the reliability.
  • the wiring piece of Example 2 to which the present invention is applied will be described.
  • the wiring piece 180 of the second embodiment is mainly different in that the core unit side has a shape extending in the axial direction from the wiring piece of the first embodiment with respect to the guide protrusion of the base portion.
  • the connecting wires to which the wiring pieces are arranged have a configuration that extends in the rotation direction along the shape of the inner periphery of the housing, and is eventually gathered at one place in the rotation direction and pulled out to the outside through the lead-out portion or the like.
  • the lead-out portion or the like may not necessarily be placed at a position that coincides with the crossover aggregation position due to the structure of the equipment where the electric motor is installed or the electric motor configuration. Furthermore, even if the position of the lead portion does not change, it may be necessary to adjust the connecting wire drawing position in the axial direction within the lead portion. When the aggregated position of the crossover lines and the position of the lead-out portion are displaced in the axial direction, a configuration in which the aggregated crossover lines are moved in the axial direction by an amount corresponding to the misalignment is avoided in terms of maintenance, vibration surface, and reliability of the crossover line 70. Is preferred.
  • Example 2 is mainly characterized by a wiring piece having a configuration in which the aggregation position can be adjusted in the axial direction while securing the crossover wire 70 and ensuring insulation.
  • a wiring piece having a configuration in which the aggregation position can be adjusted in the axial direction while securing the crossover wire 70 and ensuring insulation.
  • FIG. 9A schematically shows a perspective view of the wiring piece 180 according to the second embodiment observed from the outer diameter side
  • FIG. 9B schematically shows a perspective view of the wiring piece 180 observed from the axial center side
  • the base portion 181 of the wiring piece 180 has a shape extending from the guide portion 88 toward the stator 10 (in the drawing, the extending portion is indicated by reference numeral 181a).
  • the extending portion 181a exemplifies a configuration that is larger than the axial width of the guide portion 88, but in the present invention, the extending width is arbitrary.
  • the wiring piece 181 has a thick portion 182 having an axial width dimension substantially the same as the extending width at a position that coincides with the guide portion 88 in the extending portion 181a in the axial direction.
  • the thick portion 182 becomes thicker from the extended portion 181a toward the inner periphery of the housing, and the thickness is equal to the extended width of the guide protrusion 88a.
  • it has the outer ring
  • the thick part 181a also functions as a reinforcing member for the extending part 181a.
  • the thick portion 181a has a tapered through-hole 191 that spreads from the base 181 side to the housing inner peripheral side.
  • the through hole 191 promotes the wraparound of the mold resin 15 toward the housing inner peripheral side of the extending portion 190.
  • FIG. 10A schematically shows a perspective view of the wiring piece 180H according to the modification observed from the outer diameter side
  • FIG. 10B schematically shows a perspective view of the wiring piece 180H observed from the axial center side.
  • the base 181 further includes a through-hole 191H.
  • the through holes 191H are located at both ends of the base portion 181 in the rotation direction and between the thick portion 182 and the guide portion 88 adjacent to each other in the rotation direction.
  • the through hole 191H is a vertically long rectangle in the axial direction
  • the present invention is not limited to this, and for example, a configuration in which a plurality of through holes 191H having smaller diameters are arranged in the axial direction may be used. Since the base portion 181 includes the through hole 191H, the wraparound of the resin facilitates the wiring piece 180 extending in the axial direction by the extending portion 181a.
  • FIG. 11A schematically shows that the wiring piece 191 ⁇ / b> H and the stator 10 are arranged in the housing 30.
  • FIG. 11B shows an enlarged view of a portion surrounded by a dotted line in FIG.
  • L1 in the axial direction (larger than the separation distance shown in FIG. 7 of Example 1).
  • the crossover line 70 is arranged (for example, arranged obliquely) in the lead portion 31 from each groove via the region L1. Such a configuration may impair the stability of the crossover 70 against the sealing pressure of the mold resin 15 and the vibration when the motor is driven.
  • the extending portion 181a of the wiring piece 191H functions as a buffer for the difference with respect to the separation of L1 and the horizontal positions of all the connecting wires 70 arranged in the wiring piece 191H and the lead portion 31 are the same. It is supposed to be.
  • the position of the connecting wire 70 arranged in the wiring piece 191H is included in the horizontal direction within the axial opening width of the lead portion 31, and the connecting wire 70 converged in the vicinity of the lead portion 31 has an unreasonable bend or posture. It does not occur, and the stability of the crossover 70 can be ensured.
  • the through-holes 191 and 191H eliminate this, and the holding of the connecting wire 70 and the insulation are simultaneously secured.
  • the second embodiment it is possible to make the axial distance from the lead portion variable while securing the crossover wire 70 and ensuring insulation.
  • the wiring piece 80 (180, 180H) and the core unit 14 are arranged with the positioning portion 84.
  • the wiring piece 80 (180, 180H) is fixed to each other with an adhesive, bolts, rivets, or locking members. There may be.
  • one crossover 70 is arranged in one groove (gap) formed by the two guide protrusions 88a.
  • two or more crossovers are provided in one groove (gap). 70 may be arranged in the radial direction or the axial direction. Thereby, the diameter dimension or axial dimension of the electric motor 100 can be made small according to a specification.
  • the housing 30, the core unit 14, and the wiring piece are integrally covered with the mold resin 15.
  • a resin mold on the outer peripheral side is used and a resin molded stator as a component is used.
  • a resin molded stator manufactured by such a method can be applied to the housing 30 and fixed with an adhesive, bolts or locking members.
  • the arrangement position of the wiring piece is the anti-load side of the electric motor 100.
  • the wiring piece may be arranged on the load side.
  • it is set as the armature structure of 1 stator / 2 rotors, the structure using 2 stators / 1 rotor or 2 or more stators and rotors may be sufficient.
  • the present invention is applied to an electric motor, but a generator may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Motor Or Generator Frames (AREA)
PCT/JP2016/064673 2016-05-18 2016-05-18 アキシャルギャップ型回転電機 WO2017199355A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201680081215.8A CN108604845B (zh) 2016-05-18 2016-05-18 轴向间隙型旋转电机
JP2018517986A JP6596584B2 (ja) 2016-05-18 2016-05-18 アキシャルギャップ型回転電機
US16/097,738 US10992203B2 (en) 2016-05-18 2016-05-18 Axial gap type rotary electric machine
EP16902374.4A EP3460960B1 (en) 2016-05-18 2016-05-18 Axial gap type rotary electric machine
PCT/JP2016/064673 WO2017199355A1 (ja) 2016-05-18 2016-05-18 アキシャルギャップ型回転電機
TW106112279A TWI646758B (zh) 2016-05-18 2017-04-12 軸向間隙型旋轉電機
TW107140641A TWI727223B (zh) 2016-05-18 2017-04-12 軸向間隙型旋轉電機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/064673 WO2017199355A1 (ja) 2016-05-18 2016-05-18 アキシャルギャップ型回転電機

Publications (1)

Publication Number Publication Date
WO2017199355A1 true WO2017199355A1 (ja) 2017-11-23

Family

ID=60325110

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/064673 WO2017199355A1 (ja) 2016-05-18 2016-05-18 アキシャルギャップ型回転電機

Country Status (6)

Country Link
US (1) US10992203B2 (zh)
EP (1) EP3460960B1 (zh)
JP (1) JP6596584B2 (zh)
CN (1) CN108604845B (zh)
TW (2) TWI727223B (zh)
WO (1) WO2017199355A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018138853A1 (ja) * 2017-01-27 2018-08-02 株式会社日立産機システム アキシャルギャップ型回転電機
TWI778515B (zh) * 2021-02-05 2022-09-21 姚立和 結線架、馬達定子及應用彼之馬達
DE102023201543A1 (de) * 2023-02-21 2024-08-22 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Elektromotor eines Nebenaggregats eines Kraftfahrzeugs

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010183727A (ja) * 2009-02-05 2010-08-19 Fujitsu General Ltd アキシャルエアギャップ型電動機
JP2012213275A (ja) * 2011-03-31 2012-11-01 Komatsu Ltd インシュレータおよびこれを備えたステータ、モータ

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3607977B2 (ja) * 1999-10-04 2005-01-05 トヨタ自動車株式会社 モールドモータ
US6856055B2 (en) 2002-07-11 2005-02-15 Emerson Electric Co. Interconnecting ring and wire guide
JP4305649B2 (ja) * 2003-02-26 2009-07-29 株式会社富士通ゼネラル アキシャルギャップ型電動機
JP4725721B2 (ja) * 2005-01-24 2011-07-13 株式会社富士通ゼネラル アキシャルエアギャップ型電動機
JP2007014147A (ja) * 2005-06-30 2007-01-18 Fujitsu General Ltd 電動機
JP4956774B2 (ja) * 2005-08-24 2012-06-20 日産自動車株式会社 アキシャルギャップ型モータの結線構造
CN2822017Y (zh) 2005-09-12 2006-09-27 朱洪来 轴向磁路双驱动式无刷无齿直流轮毂电机
JP4868147B2 (ja) 2006-11-08 2012-02-01 株式会社富士通ゼネラル アキシャルエアギャップ型電動機
JP2008125278A (ja) * 2006-11-14 2008-05-29 Fujitsu General Ltd アキシャルエアギャップ型電動機
JP2008131682A (ja) * 2006-11-16 2008-06-05 Fujitsu General Ltd アキシャルエアギャップ型電動機
DE102008024378A1 (de) 2008-05-20 2009-12-03 Miele & Cie. Kg Elektromotor mit Sensor und/oder Thermoschutzschalter
TWM359868U (en) 2009-01-05 2009-06-21 zhen-xing Huang Iron core structure of motor
JP5319407B2 (ja) 2009-06-04 2013-10-16 本田技研工業株式会社 圧入装置及びアキシャルギャップ型回転電機のステータの製造方法
US8482180B2 (en) * 2010-10-20 2013-07-09 Asmo Co., Ltd. Stator, brushless motor, and manufacturing method of the same
JP2013118750A (ja) 2011-12-02 2013-06-13 Hitachi Ltd アキシャルギャップ型回転電機及びその製造方法
CN104106199B (zh) 2012-02-17 2016-08-31 株式会社日立制作所 旋转电机
JP5965228B2 (ja) 2012-07-06 2016-08-03 株式会社日立製作所 アキシャルギャップ型回転電機
DE102012020329A1 (de) 2012-10-17 2014-04-17 Sew-Eurodrive Gmbh & Co Kg Elektromotor und Verfahren zum Herstellen eines Elektromotors
JP5851432B2 (ja) * 2013-02-08 2016-02-03 株式会社日立製作所 回転電機
JP6073763B2 (ja) 2013-08-30 2017-02-01 株式会社日立産機システム アキシャルギャップ型永久磁石同期電動機
CN203660698U (zh) 2013-12-27 2014-06-18 中山大洋电机制造有限公司 一种电机定子铁芯上的端部绝缘结构及其应用的塑封电机
JP6463895B2 (ja) 2014-02-28 2019-02-06 日本電産テクノモータ株式会社 モータ用ステータ及びその製造方法
JP2015171239A (ja) * 2014-03-07 2015-09-28 アイシン精機株式会社 回転電機のステータ及び回転電機
US10530210B2 (en) 2014-04-11 2020-01-07 Hitachi Industrial Equipment Systems Co., Ltd. Axial air gap rotating electric machine
CN106416024B (zh) 2014-04-14 2019-06-07 株式会社日立产机系统 轴向间隙型旋转电机
JP2016059208A (ja) * 2014-09-11 2016-04-21 日立オートモティブシステムズ株式会社 電動流体ポンプ
DE102014221188A1 (de) 2014-10-20 2016-04-21 Bayerische Motoren Werke Aktiengesellschaft Schaltringanordnung für eine elektrische Maschine
JP6416965B1 (ja) * 2017-03-31 2018-10-31 本田技研工業株式会社 コイル巻回部品及び回転電機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010183727A (ja) * 2009-02-05 2010-08-19 Fujitsu General Ltd アキシャルエアギャップ型電動機
JP2012213275A (ja) * 2011-03-31 2012-11-01 Komatsu Ltd インシュレータおよびこれを備えたステータ、モータ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3460960A4 *

Also Published As

Publication number Publication date
TWI646758B (zh) 2019-01-01
US10992203B2 (en) 2021-04-27
EP3460960A4 (en) 2020-01-08
EP3460960B1 (en) 2022-02-23
EP3460960A1 (en) 2019-03-27
JP6596584B2 (ja) 2019-10-23
CN108604845A (zh) 2018-09-28
CN108604845B (zh) 2020-06-16
JPWO2017199355A1 (ja) 2018-10-18
US20200395808A1 (en) 2020-12-17
TWI727223B (zh) 2021-05-11
TW201742356A (zh) 2017-12-01
TW201907645A (zh) 2019-02-16

Similar Documents

Publication Publication Date Title
JP5306411B2 (ja) 回転電機
JP5937701B2 (ja) 回転機及び電動車両
JP6220962B2 (ja) アキシャルエアギャップ型回転電機
EP3193428B1 (en) Stator
JP6120991B2 (ja) 永久磁石埋込型電動機
WO2016017342A1 (ja) ステータ及び回転機
US20150372544A1 (en) Rotary Electric Machine
JP2010246343A (ja) 電機における固定子
JP6596584B2 (ja) アキシャルギャップ型回転電機
EP2031735B1 (en) Stator and electric motor
JP2016208745A (ja) 回転電機、回転電機の製造方法、固定子コイル、コイル樹脂構造体
TWI673936B (zh) 軸向間隙型旋轉電機
JP2009118636A (ja) 回転電機および回転電機の製造方法
KR20220139991A (ko) 회전 전기 기기의 고정자
WO2014103758A1 (ja) 回転機及びステータの製造方法
US11139714B2 (en) Axial gap rotary electric machine
JP6742263B2 (ja) 回転電機
WO2018142465A1 (ja) アキシャルギャップ型回転電機
JP2010226901A (ja) 回転電機
JP2018186664A (ja) 回転電機に用いられる固定子、回転電機、及び固定子の製造方法
KR101311927B1 (ko) 영구자석 회전기기용 분할형 철심
JP2017123743A (ja) 電動機用ステータ

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018517986

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16902374

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016902374

Country of ref document: EP

Effective date: 20181218